Bui, 300, U. S. Dept. of Agricultu 
Plate I. 
Fig. 1.— Dredge Equipped with Bank Spuds. 
DI4421a 
Fig. 2.— Dredge Equipped with Vertical Spuds. 
TYPES OF FLOATING DIPPER DREDGES. 
DI4S07b 
